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Du J, Li J, Lv R, Du X. Controllable in situ growth of novel octahedral TiO 2 nanoparticles on nickel/titanium alloy fiber substrate for selective solid-phase microextraction of ultraviolet filters in water samples. RSC Adv 2022; 12:11933-11941. [PMID: 35481081 PMCID: PMC9017461 DOI: 10.1039/d2ra01031c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 04/05/2022] [Indexed: 12/04/2022] Open
Abstract
The nature and fabrication of fiber coatings with good adsorption capacity and selectivity play a decisive role in solid-phase microextraction (SPME). In this work, a novel SPME fiber was fabricated through hydrothermal in situ growth of octahedral TiO2 nanoparticles (TiO2NPs) on a superelastic nickel/titanium alloy (NiTi) wire substrate in acid solution. The resulting fiber coatings were characterized by scanning electron microscopy and energy dispersive X-ray spectroscopy. Acid types, acid concentration as well as hydrothermal temperature and time were found to be effective route to manipulate the morphologies and composition of TiO2-based nanoflakes grown on the NiTi fiber substrates. At the concentration of 0.4 mol L−1 HCl as well as hydrothermal temperature of 150 °C and hydrothermal time of 12 h, TiO2NPs were in situ grown on the NiTi wire substrates. The obtained NiTi wire with the TiO2NPs coating (NiTi@TiO2NPs fiber) was employed to investigate the adsorption of some representative aromatic analytes in water samples coupling with high-performance liquid chromatography with UV detection (HPLC/UV). The results clearly demonstrate that the fiber exhibits good extraction selectivity for ultraviolet filters (UVFs). In view of good extraction selectivity for the selected UVFs, the key experimental parameters were optimized. Under the optimum conditions, the calibration curves were linear in the ranges of 0.05–100 μg L−1 with the correlation coefficients greater than 0.998. Limits of detection (LODs) were 0.007 to 0.064 μg L−1. Furthermore, the intra-day and inter-day repeatability of the proposed method with the single fiber varied from 4.3% to 6.1% and from 4.5% to 6.8%, respectively. The fiber-to-fiber reproducibility ranged from 5.8% to 8.2%. The developed SPME-HPLC/UV method was applied to selective preconcentration and sensitive determination of target UVFs from real water samples. Moreover, the fabricated fiber showed precisely controllable growth and 150 extraction and desorption cycles. This work presents a facile strategy with in situ growth of TiO2 nanoparticles on nickel/titanium alloy wire through hydrothermal method for selective preconcentration and determination of UVFs in water.![]()
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Affiliation(s)
- Junliang Du
- College of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang, 621000, China
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China
| | - Juan Li
- College of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang, 621000, China
| | - Rui Lv
- College of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang, 621000, China
| | - Xinzhen Du
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China
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Lohrer C, Cwierz PP, Wirth MA, Schulz-Bull DE, Kanwischer M. Methodological aspects of methylphosphonic acid analysis: Determination in river and coastal water samples. Talanta 2020; 211:120724. [PMID: 32070570 DOI: 10.1016/j.talanta.2020.120724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 01/03/2020] [Accepted: 01/07/2020] [Indexed: 01/18/2023]
Abstract
Methylphosphonic acid (MPn) is suspected to play an important role in aquatic systems like rivers or the open ocean. To gain more insights into the importance of MPn, e.g., for the aquatic phosphorus cycle, an analytical method for its quantitative determination was developed. The method is based on the use of an isotopically-labelled internal standard and sample preparation including solid-phase extraction (SPE). Instrumental detection was done using GC-MS after derivatisation of MPn with N-tert-Butyldimethylsilyl-N-methyltrifluoroacetamide (MTBSTFA). The study compares different isotopically-labelled compounds as well as different SPE-materials. As water samples with high salt content decrease the recovery of the chosen SPE-material, a desalting procedure using electrodialysis was implemented. Finally, water samples from different aquatic systems located at the German Baltic Sea coastal area were analysed to gain first insights into the relevance of MPn in these systems. MPn-concentrations in the low μg/L-range were detected.
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Affiliation(s)
- Constantin Lohrer
- Leibniz Institute for Baltic Sea Research Warnemuende, Department of Marine Chemistry, Seestrasse 15, 18119, Rostock, Germany.
| | - Paul P Cwierz
- Leibniz Institute for Baltic Sea Research Warnemuende, Department of Marine Chemistry, Seestrasse 15, 18119, Rostock, Germany
| | - Marisa A Wirth
- Leibniz Institute for Baltic Sea Research Warnemuende, Department of Marine Chemistry, Seestrasse 15, 18119, Rostock, Germany
| | - Detlef E Schulz-Bull
- Leibniz Institute for Baltic Sea Research Warnemuende, Department of Marine Chemistry, Seestrasse 15, 18119, Rostock, Germany
| | - Marion Kanwischer
- Leibniz Institute for Baltic Sea Research Warnemuende, Department of Marine Chemistry, Seestrasse 15, 18119, Rostock, Germany
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Ying WB, Bae K, Ko NY, Kim SH, Ryu SG, Zhu J, Zhang R, Lee B, Lee KJ. Synthesis of poly[2-(3-butenyl)-2-oxazoline] with abundant carboxylic acid functional groups as a fiber-based sol–gel reaction supporter for catalytic applications. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.07.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Fedotov PS, Malofeeva GI, Savonina EY, Spivakov BY. Solid-Phase Extraction of Organic Substances: Unconventional Methods and Approaches. JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1134/s1061934819030043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Cui Y, Li S, Yang X, Wang Y, Dai Z, Shen Q. HLB/PDMS-Coated Stir Bar Sorptive Extraction of Microcystins in Shellfish Followed by High-Performance Liquid Chromatography and Mass Spectrometry Analysis. FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-018-1152-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kim S, Ying WB, Jung H, Ryu SG, Lee B, Lee KJ. Zirconium Hydroxide-coated Nanofiber Mats for Nerve Agent Decontamination. Chem Asian J 2017; 12:698-705. [DOI: 10.1002/asia.201601729] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 01/21/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Sohee Kim
- Department of Fine Chemical Engineering and Applied Chemistry; College of Engineering; Chungnam National University; 99 Daehak-ro (st) Yuseong-gu Daejeon 305-764 Republic of Korea
| | - Wu Bin Ying
- Department of Fine Chemical Engineering and Applied Chemistry; College of Engineering; Chungnam National University; 99 Daehak-ro (st) Yuseong-gu Daejeon 305-764 Republic of Korea
| | - Hyunsook Jung
- The 5th Research and Development Institute; Agency for Defense Development; Yuseong-Gu Daejeon 305-600 South Korea
| | - Sam Gon Ryu
- The 5th Research and Development Institute; Agency for Defense Development; Yuseong-Gu Daejeon 305-600 South Korea
| | - Bumjae Lee
- Department of Fine Chemical Engineering and Applied Chemistry; College of Engineering; Chungnam National University; 99 Daehak-ro (st) Yuseong-gu Daejeon 305-764 Republic of Korea
| | - Kyung Jin Lee
- Department of Fine Chemical Engineering and Applied Chemistry; College of Engineering; Chungnam National University; 99 Daehak-ro (st) Yuseong-gu Daejeon 305-764 Republic of Korea
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Cao K, Xu Y, Mu X, Zhang Q, Wang R, Lv J. Sensitive determination of pyrrolizidine alkaloids inTussilago farfaraL. by field-amplified, sample-stacking, sweeping micellar electrokinetic chromatography. J Sep Sci 2016; 39:4243-4250. [DOI: 10.1002/jssc.201600762] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 08/25/2016] [Accepted: 08/30/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Kun Cao
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing P. R. China
| | - Yi Xu
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing P. R. China
- Defense Key Disciplines Lab of Novel Micro-nano Devices and System Technology; Chongqing P. R. China
- International R&D center of Micro-nano Systems and New Materials Technology; Chongqing P. R. China
| | - Xiuni Mu
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing P. R. China
| | - Qing Zhang
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing P. R. China
| | - Renjie Wang
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing P. R. China
| | - Junjiang Lv
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing P. R. China
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Barbell-shaped stir bar sorptive extraction using dummy template molecularly imprinted polymer coatings for analysis of bisphenol A in water. Anal Bioanal Chem 2016; 408:5329-35. [DOI: 10.1007/s00216-016-9628-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 05/03/2016] [Accepted: 05/10/2016] [Indexed: 11/25/2022]
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Affiliation(s)
- Rachel K Harstad
- University of Minnesota , Department of Chemistry, 207 Pleasant Street South East, Minneapolis, Minnesota 55455, United States
| | - Alexander C Johnson
- University of Minnesota , Department of Chemistry, 207 Pleasant Street South East, Minneapolis, Minnesota 55455, United States
| | - Megan M Weisenberger
- University of Minnesota , Department of Chemistry, 207 Pleasant Street South East, Minneapolis, Minnesota 55455, United States
| | - Michael T Bowser
- University of Minnesota , Department of Chemistry, 207 Pleasant Street South East, Minneapolis, Minnesota 55455, United States
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Płotka-Wasylka J, Szczepańska N, de la Guardia M, Namieśnik J. Miniaturized solid-phase extraction techniques. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2015.04.026] [Citation(s) in RCA: 309] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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Breadmore MC, Tubaon RM, Shallan AI, Phung SC, Abdul Keyon AS, Gstoettenmayr D, Prapatpong P, Alhusban AA, Ranjbar L, See HH, Dawod M, Quirino JP. Recent advances in enhancing the sensitivity of electrophoresis and electrochromatography in capillaries and microchips (2012-2014). Electrophoresis 2015; 36:36-61. [DOI: 10.1002/elps.201400420] [Citation(s) in RCA: 132] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 09/25/2014] [Accepted: 09/25/2014] [Indexed: 12/15/2022]
Affiliation(s)
- Michael C. Breadmore
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Ria Marni Tubaon
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Aliaa I. Shallan
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Sui Ching Phung
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Aemi S. Abdul Keyon
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
- Faculty of Science; Department of Chemistry, Universiti Teknologi Malaysia; Johor Malaysia
| | - Daniel Gstoettenmayr
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Pornpan Prapatpong
- Faculty of Pharmacy; Department of Pharmaceutical Chemistry, Mahidol University; Rajathevee Bangkok Thailand
| | - Ala A. Alhusban
- Faculty of Health Sciences, School of Pharmacy; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Leila Ranjbar
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
| | - Hong Heng See
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
- Ibnu Sina Institute for Fundamental Science Studies; Universiti Teknologi Malaysia; Johor Malaysia
| | - Mohamed Dawod
- Department of Chemistry; University of Michigan; Ann Arbor MI USA
- Faculty of Pharmacy; Department of Analytical Chemistry, Al-Azhar University; Cairo Egypt
| | - Joselito P. Quirino
- School of Physical Science; Australian Centre of Research on Separation Science, University of Tasmania; Hobart Tasmania Australia
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Zhou X, He M, Chen B, Hu B. Hollow fiber based liquid–liquid–liquid microextraction combined with sweeping micellar electrokinetic chromatography for the sensitive determination of second-generation antidepressants in human fluids. Analyst 2015; 140:1662-71. [DOI: 10.1039/c4an02209b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
HF-LPME is combined with sweeping MEKC for the sensitive determination of second-generation antidepressants in human fluids.
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Affiliation(s)
- Xiaoqing Zhou
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- Department of Chemistry
- Wuhan University
- Wuhan 430072
- China
| | - Man He
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- Department of Chemistry
- Wuhan University
- Wuhan 430072
- China
| | - Beibei Chen
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- Department of Chemistry
- Wuhan University
- Wuhan 430072
- China
| | - Bin Hu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- Department of Chemistry
- Wuhan University
- Wuhan 430072
- China
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Røen BT, Sellevåg SR, Lundanes E. Quantification of Nerve Agent Biomarkers in Human Serum and Urine. Anal Chem 2014; 86:11833-40. [DOI: 10.1021/ac503408x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bent Tore Røen
- Norwegian Defence Research Establishment, P.O.
Box 25, NO-2027 Kjeller, Norway
- Department
of Chemistry, University of Oslo, P.O. Box 1033, Blindern, NO-0315 Oslo, Norway
| | - Stig Rune Sellevåg
- Norwegian Defence Research Establishment, P.O.
Box 25, NO-2027 Kjeller, Norway
| | - Elsa Lundanes
- Department
of Chemistry, University of Oslo, P.O. Box 1033, Blindern, NO-0315 Oslo, Norway
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Malá Z, Šlampová A, Křivánková L, Gebauer P, Boček P. Contemporary sample stacking in analytical electrophoresis. Electrophoresis 2014; 36:15-35. [DOI: 10.1002/elps.201400313] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 08/05/2014] [Accepted: 08/05/2014] [Indexed: 12/14/2022]
Affiliation(s)
- Zdena Malá
- Institute of Analytical Chemistry; Academy of Sciences of the Czech Republic; Brno Czech Republic
| | - Andrea Šlampová
- Institute of Analytical Chemistry; Academy of Sciences of the Czech Republic; Brno Czech Republic
| | - Ludmila Křivánková
- Institute of Analytical Chemistry; Academy of Sciences of the Czech Republic; Brno Czech Republic
| | - Petr Gebauer
- Institute of Analytical Chemistry; Academy of Sciences of the Czech Republic; Brno Czech Republic
| | - Petr Boček
- Institute of Analytical Chemistry; Academy of Sciences of the Czech Republic; Brno Czech Republic
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17
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Chen B, He M, Zhong C, Hu B. Chiral speciation of selenoamino acids in biological samples. J Chromatogr A 2014; 1363:62-70. [DOI: 10.1016/j.chroma.2014.07.098] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 07/26/2014] [Accepted: 07/29/2014] [Indexed: 10/24/2022]
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18
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Solid-phase extraction of phosphorous-containing amino acid herbicides from biological specimens with a zirconia-coated silica cartridge. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 969:69-76. [DOI: 10.1016/j.jchromb.2014.08.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 07/30/2014] [Accepted: 08/03/2014] [Indexed: 11/19/2022]
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19
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Xu Z, Yang Z, Liu Z. Development of dual-templates molecularly imprinted stir bar sorptive extraction and its application for the analysis of environmental estrogens in water and plastic samples. J Chromatogr A 2014; 1358:52-9. [DOI: 10.1016/j.chroma.2014.06.093] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 06/26/2014] [Accepted: 06/27/2014] [Indexed: 10/25/2022]
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da Rosa Neng N, Sequeiros RCP, Florêncio Nogueira JM. Combining bar adsorptive microextraction with capillary electrophoresis-Application for the determination of phenolic acids in food matrices. Electrophoresis 2014; 35:2488-94. [DOI: 10.1002/elps.201400101] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 04/14/2014] [Accepted: 04/15/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Nuno da Rosa Neng
- Chemistry and Biochemistry Department and Center of Chemistry and Biochemistry; Faculty of Sciences, University of Lisbon; Lisbon Portugal
| | - Rute C. P. Sequeiros
- Chemistry and Biochemistry Department and Center of Chemistry and Biochemistry; Faculty of Sciences, University of Lisbon; Lisbon Portugal
| | - José Manuel Florêncio Nogueira
- Chemistry and Biochemistry Department and Center of Chemistry and Biochemistry; Faculty of Sciences, University of Lisbon; Lisbon Portugal
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Stir bar sorptive extraction: recent applications, limitations and future trends. Talanta 2014; 130:388-99. [PMID: 25159426 DOI: 10.1016/j.talanta.2014.07.022] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Revised: 07/07/2014] [Accepted: 07/09/2014] [Indexed: 12/27/2022]
Abstract
Stir bar sorptive extraction (SBSE) has generated growing interest due to its high effectiveness for the extraction of non-polar and medium-polarity compounds from liquid samples or liquid extracts. In particular, in recent years, a large amount of new analytical applications of SBSE has been proposed for the extraction of natural compounds, pollutants and other organic compounds in foods, biological samples, environmental matrices and pharmaceutical products. The present review summarizes and discusses the theory behind SBSE and the most recent developments concerning its effectiveness. In addition, the main results of recent analytical approaches and their applications, published in the last three years, are described. The advantages, limitations and disadvantages of SBSE are described and an overview of future trends and novel extraction sorbents and supports is given.
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Quantitation of five organophosphorus nerve agent metabolites in serum using hydrophilic interaction liquid chromatography and tandem mass spectrometry. Anal Bioanal Chem 2014; 406:5195-202. [PMID: 24633507 DOI: 10.1007/s00216-014-7702-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 02/07/2014] [Accepted: 02/17/2014] [Indexed: 10/25/2022]
Abstract
Although nerve agent use is prohibited, concerns remain for human exposure to nerve agents during decommissioning, research, and warfare. Exposure can be detected through the analysis of hydrolysis products in urine as well as blood. An analytical method to detect exposure to five nerve agents, including VX, VR (Russian VX), GB (sarin), GD (soman), and GF (cyclosarin), through the analysis of the hydrolysis products, which are the primary metabolites, in serum has been developed and characterized. This method uses solid-phase extraction coupled with high-performance liquid chromatography for separation and isotopic dilution tandem mass spectrometry for detection. An uncommon buffer of ammonium fluoride was used to enhance ionization and improve sensitivity when coupled with hydrophilic interaction liquid chromatography resulting in detection limits from 0.3 to 0.5 ng/mL. The assessment of two quality control samples demonstrated high accuracy (101-105%) and high precision (5-8%) for the detection of these five nerve agent hydrolysis products in serum.
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Kitagawa F, Otsuka K. Recent applications of on-line sample preconcentration techniques in capillary electrophoresis. J Chromatogr A 2014; 1335:43-60. [DOI: 10.1016/j.chroma.2013.10.066] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 10/18/2013] [Accepted: 10/21/2013] [Indexed: 12/21/2022]
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Røen BT, Sellevåg SR, Dybendal KE, Lundanes E. Trace determination of primary nerve agent degradation products in aqueous soil extracts by on-line solid phase extraction–liquid chromatography–mass spectrometry using ZrO2 for enrichment. J Chromatogr A 2014; 1329:90-7. [DOI: 10.1016/j.chroma.2014.01.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Revised: 12/19/2013] [Accepted: 01/04/2014] [Indexed: 11/16/2022]
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25
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He M, Chen B, Hu B. Recent developments in stir bar sorptive extraction. Anal Bioanal Chem 2013; 406:2001-26. [DOI: 10.1007/s00216-013-7395-y] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Revised: 09/12/2013] [Accepted: 09/23/2013] [Indexed: 10/26/2022]
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26
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Zhang Z, Zhang F, Liu Y. Recent Advances in Enhancing the Sensitivity and Resolution of Capillary Electrophoresis. J Chromatogr Sci 2013; 51:666-83. [DOI: 10.1093/chromsci/bmt012] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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